feat(aws-lambda): Hono-Lambda Client

[watany-dev]

When making requests to Lambda behind CloudFront, you may need to implement payload calculation logic as described in the article below.
https://dev.classmethod.jp/articles/cloudfront-lambda-url-with-post-put-request/

This involves unnecessary tedious work, which can be eliminated by wrapping Hono's hc. However, a drawback is that the code becomes quite redundant, so you need to be careful to keep it updated.

The author should do the following, if applicable

• Add tests
• Run tests
• bun run format:fix && bun run lint:fix to format the code
• Add TSDoc/JSDoc to document the code

[codecov]

Codecov Report

Attention: Patch coverage is 58.18182% with 69 lines in your changes missing coverage. Please review.

Project coverage is 91.20%. Comparing base (47bb23c) to head (f304e9c).

Files with missing lines	Patch %	Lines
src/adapter/aws-lambda/client.ts	57.92%	69 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3740      +/-   ##
==========================================
- Coverage   91.73%   91.20%   -0.54%     
==========================================
  Files         159      160       +1     
  Lines       10177    10341     +164     
  Branches     2883     2897      +14     
==========================================
+ Hits         9336     9431      +95     
- Misses        840      909      +69     
  Partials        1        1              

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[watany-dev]

Alternatively, we might just provide the calculateSHA256 function and implement it like this:

• case1

import { useOac } from 'hono/lambda'

const client = hc<AppType>('http://localhost:8787/')
const payload = { name: 'Alice', message: 'Hello World' };

// Send POST request
const res = await client.echo.$post(
  {
    json: payload,
  },
  useOac(header),
);

• case2

import { calculateSHA256 } from 'hono/lambda'

const client = hc<AppType>('http://localhost:8787/')
const payload = { name: 'Alice', message: 'Hello World' };

// Send POST request
const res = await client.echo.$post(
  {
    json: payload,
  },
  {
    headers: {
      'x-amz-content-sha256': await calculateSHA256(JSON.stringify(payload)),
    },
  }
);